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Finding the Fourth Proportional to 10,101.70, 15,152.55 and 7,477.30

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Solution

The fourth proportional to 10,101.70, 15,152.55 and 7,477.30 is: 11,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.70 : 15,152.55 = 7,477.30 : x
  2. Step 2: Convert to fraction form
    10,101.70/15,152.55 = 7,477.30/x
  3. Step 3: Cross multiply
    10,101.70x = 15,152.55 × 7,477.30
  4. Step 4: Simplify right side
    10,101.70x = 113,300,162.12
  5. Step 5: Solve for x
    x = 113,300,162.12/10,101.70
  6. Step 6: Final answer
    x = 11,215.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.